Nanofibers Produced by a Melt-Electrospinning System with a Laser Melting Device
A new melt-electrospinning system equipped with a CO2-laser melting device was developed. Rodlike samples were prepared from poly(lactide) pellets(PLA) and polyCethylene-co-vinyl alcohol) (EVAL) pellets, then fibers were produced from these rodlike samples using the new system. The effects of producing conditions on the fiber diameter were investigated. Furthermore, the physical properties of the fibers were investigated. The following conclusions were reached: (i) fibers having an average fiber diameter smaller than 1μm could be obtained from these PLA and EVAL rods using the system developed in this work; (ii) the average diameter of PLA fibers could be decreased with increased laser output power, but the physical properties of the fibers such as the melting point and the molecular weight were decreased markedly; (iii) the diameter of EVAL fibers decreased with decreasing ethylene content, (iv) laser heating did not decrease markedly the melting point of EVAL and the average viscometric degree of polymerization of EVAL, and (v) the EVAL fibers exhibited anisotropic crystal orientation.
Melt-electrospinning system EVAL fibers CO2-laser melting device
Nobuo Ogata Shinji Yamaguchi Koji Nakane Takashi Ogihara
University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, Japan
国际会议
杭州
英文
52-59
2006-08-22（万方平台首次上网日期，不代表论文的发表时间）